谈普通随身听的通病

• 作 者: 巩建辉
• 出 处: 家电检修技术
• 发表日期: 2002年08期
• 关键词: 电流声 放音 稳速 局部短路 负载能力 铜屑 工作性能 直流电压 酒精棉球 凉干

现在市面上普通随身听的种类繁多,但机芯大都是由稳速块D6650(AN6650)和放音块TDA2822组成。此类机子价格低廉,倍受学生青睐,但质量较差,大多数使用一年左右后,便出现通病:“放音时变调,有时干脆停止,无声,但有嗡嗡的电流声”。

Now a variety of ordinary Walkman on the market, but the movement is mostly composed of steady speed block D6650 (AN6650) and playback block TDA2822. Such machines are inexpensive and much favored by students, but their quality is poor. After most of them have been used for about a year, common problems appear: “When tone changes, it sometimes stops, silent, but buzzing current sounds.”